在体外没有抗癌作用的抗癌药物是（）
A.阿糖胞苷
B.阿霉素
C.环磷酰胺
D.卡莫司汀
E.长春碱
参考答案：C
— Is my answer to the math problem right?
— Let me consider it carefully _____ I give you an answer. [ ]
A. before
B. after
C. since
D. as soon as
根据传染病防治法，下列哪种疾病不应按甲类传染病管理（）
A.艾滋病
B.传染性非典型性肺炎
C.肺炭疽
D.鼠疫
E.霍乱
